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Inertia

If graphs are...

Question

If graphs are possible then, in which of the following cases external impulse must be acting on the box?

A

II

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B

IV

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C

V

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D

VI

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Solution

The correct option is D VI
On 6th these has to an external force because in ideal condition once motion start to stop it an external force must be applied.
In 6th graph, slope of b is zero that means velocity of B is zero, to stop B external force is applied.

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